Hormone Health Hub: Expert Insights on Testing, Balance & Better Living — Norepinephrine

Diurnal Fluctuations in Norepinephrine and Epinephrine Levels as Part of the Healthy Stress Response

Posted by Dr. Kate Placzek on

Norepinephrine and epinephrine follow a distinct diurnal rhythm — rising through the morning, peaking in the afternoon, and falling at night. When this pattern is disrupted by chronic stress, the consequences ripple through every hormonal system in the body. Learn how the stress response works and how dried urine testing can reveal imbalances.

Read more →


Brain Chemistry Balance: When Neurotransmitter Testing Changes Lives

Posted by Hormone Lab UK Editorial Team on

Brain Chemistry Balance: When Neurotransmitter Testing Changes Lives - from brain fog to focus, see how tailored insights spark calm, clarity and wellbeing.

Read more →


How Hormones and Neurotransmitters Shape PMS & PMDD: The Science Behind Menstrual Mood Disorders

Posted by Hormone Lab UK Editorial Team on

PMS and PMDD are more than hormonal mood swings—they are complex neuroendocrine conditions driven by interactions between sex hormones and neurotransmitters like serotonin, GABA, and cortisol. This article explains the science behind menstrual mood disorders and highlights how advanced hormone and neurotransmitter testing from Hormone Lab UK and ZRT Laboratory can help identify imbalances and guide personalised treatment.

Read more →


Neurotransmitter Testing: A Guide to Urine Tests and Results

Posted by Hormone Lab UK Editorial Team on

Discover the powerful benefits of neurotransmitters test, how it detects chemical imbalances in the brain, improves mood, focus, sleep, and guides personalized treatments for lasting mental and physical wellness.

Read more →


Neurotransmitters: The Body’s Chemical Messengers & Why Testing Matters

Posted by Hormone Lab UK Editorial Team on

Neurotransmitters like dopamine, serotonin, and GABA control mood, sleep, focus, and energy. When they fall out of balance, the effects can be wide-ranging — and testing is the first step to understanding why.

Read more →